4,511 Answered Questions for the topic prealgebra

Prealgebra Math Precalculus

07/21/21

Math help I’m failing summer

j(x)= 6x^4+2x^3-4x+4; find j(2)
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Prealgebra Math

07/20/21

My younger brother needs help understanding this Math problem, how can I help him understand this?
A ski group rented a bus to the ski slopes. Only 7/10 of the group went on the trip and only 3/5 of those paid in advance. What part of the total group paid in advance?(A) 14/3(B) 21/50(C) 2/3(D) 6/7
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Prealgebra Math

07/20/21

Can someone please help me with this Math problem? I’m trying to help my younger brother with his homework.
The X-axis is a line of symmetry for a triangle. The coordinates of two of its vertices are (1, -1) and (7,0). (A) (-7,0)(B) (1,1)(C) (-1,-1)(D) (1,-7)My brother got (A) and I got (D), are either... more
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Prealgebra Math

07/20/21

Can someone please check if my brother got this correct?
My younger brother needed help with this Math question:The ratio of employees to computers in a certain company is 11 to 6. If there are 121 employees in the company, how many computers are... more
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Prealgebra Math

07/19/21

Can someone please help me with this?
I’m helping my younger brother with his homework, and I just want to make sure I’m helping him correctly. The x-axis is a line of symmetry for a triangle. The coordinates of two of its vertices are... more
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Prealgebra Math

07/19/21

Can someone please help me with this Math problem?
My younger brother needs help with this Math problem, how can I explain it to him so he understands it better?The ratio of employees to computers in a certain company is 12 to 2. If there are 6... more
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07/19/21

Algebraic Problem
5-2(4-2/3)-22-(-2)2+5/7-1/3÷2
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Prealgebra Algebra 1 Algebra

07/18/21

Christie pilots her plane for 240 mi against a headwind in 2 hrs. The flight would take 1 hr and 30 mins with a tailwind of the same speed. Find the headwind and the speed of the plane in still air.
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Prealgebra Algebra 1 Algebra

07/18/21

Alvin paddled for 5 hours with a 2​-km/h current to reach a campsite. The return trip against the same current took 7 hours. Find the speed of the boat in still water.
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Prealgebra Algebra 1 Algebra

07/18/21

A train leaves a station and travels north at a speed of 50 mph. Five hours​ later, a second train leaves on a parallel track and travels north at 175 mph. How far from the station will they​ meet?
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Prealgebra Algebra 1 Algebra

07/18/21

For commercials aired during a sporting​ event, advertisers paid an average of​ $5 million to air a​ 30-sec commercial.

For commercials aired during a sporting​ event, advertisers paid an average of​ $5 million to air a​ 30-sec commercial. Even at this​ rate, some commercials were longer than 30 sec. A total of 60... more
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Prealgebra Algebra 1 Algebra

07/18/21

A motel clerk counts his​ $1 and​ $10 bills at the end of the day.
A motel clerk counts his​ $1 and​ $10 bills at the end of the day. He finds that he has a total of 44 bills having a combined monetary value of ​$152. Find the number of bills of each denomination... more
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Prealgebra

07/16/21

Dimensions fo a rectangle
A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 3 square feet. Find the length of the rectangle.
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Prealgebra Math Precalculus

06/26/21

Maricopa's Success scholarship fund receives a gift of $140000.

Maricopa's Success scholarship fund receives a gift of $140000. The money is invested in stocks, bonds, and CDs. CDs pay 4.5 % interest, bonds pay 5.5 % interest, and stocks pay 10 % interest.... more
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Prealgebra Math Precalculus

06/26/21

A movie theater has a seating capacity of 225. The theater charges $5.00 for children,
A movie theater has a seating capacity of 225. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults. There are half as many adults as there are children. If the total... more
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Prealgebra Math Pre Calculus

06/26/21

At a local baseball game, the concession stand has two different meal choices.

At a local baseball game, the concession stand has two different meal choices. You can get 8 hotdogs and 5 drinks for $15.50 or you can get 3 hotdogs and 7 drinks for $13.50. If the price of... more
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Prealgebra Math Precalculus

06/26/21

Noelle has 39 coins in her pocket, all of which are nickels and quarters.
Noelle has 39 coins in her pocket, all of which are nickels and quarters. If the total value of her change is $5.35, how many nickels and how many quarters does she have?Number of nickels that... more
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Prealgebra Math

06/25/21

April has 23 coins in her pocket, all of which are dimes and quarters.
April has 23 coins in her pocket, all of which are dimes and quarters. If the total value of her change is $4.55, how many dimes and how many quarters does she have?Number of dimes that April has... more
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Prealgebra Math

06/25/21

Tevin just inherited $48900. He chooses to invest some of his inheritance in a mutual fund that pays 8% and the rest in a less risky CD that pays 4%.
Tevin just inherited $48900. He chooses to invest some of his inheritance in a mutual fund that pays 8% and the rest in a less risky CD that pays 4%. If his annual interest between the two accounts... more
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Prealgebra Math

06/24/21

Jeremy just inherited $43300. He chooses to invest some of his inheritance in a mutual fund that pays 5% and the rest in a less risky CD that pays 3%
Jeremy just inherited $43300. He chooses to invest some of his inheritance in a mutual fund that pays 5% and the rest in a less risky CD that pays 3%. If his annual interest between the two... more
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06/20/21

So I cant find the answer of my assignment in google about this matrix question

Assume A is 3 by 3 matrix. Show that (AT )-1= A by using your own example. Can anyone give me the example
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Prealgebra Math Algebra 1 Algebra 2

06/18/21

Translate to an algebraic expression. Math Review before Final
The difference of five times a number and two.
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Prealgebra Math Algebra 1 Algebra 2

06/18/21

Two angles are complementary (the sum of the two angles is 90 degrees). The sum of the first angle plus twice the second angle is 150 degrees. Find the measures of the angles.
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Prealgebra Math Algebra 1 Algebra 2

06/17/21

Statistics Question, urgent help please!
By looking at this scatter plot, are there any outliers? Explain please, thank you. In detail, describe the correlation. (whether there are issues, the trend wise, etc.) Where is the hidden... more
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Prealgebra Math Algebra 1 Algebra 2

06/17/21

Statistics Question Help please!!
Can you identify more than one hidden variable in a scatter plot? Please explain, thank you.
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